Rusty Bowtie

General Category => General Discussion - Intros => Topic started by: EDNY on October 22, 2016, 07:25:09 PM

Title: Wiring a MOPAR 3 wire alternator?
Post by: EDNY on October 22, 2016, 07:25:09 PM
My buddy is wiring up his car and is using this 3 wire alternator, the ground and battery power is self explanatory. It has (2) field connectors, the one on the left has a ceramic insulator.

My question is which terminal gets the exciter wire and how is the other wire wired?

Does the MOPAR alternator have a built in diode for the exciter wire or should I solder one in?
Title: Re: Wiring a MOPAR 3 wire alternator?
Post by: ghost28 on October 22, 2016, 07:39:17 PM
Maybe this will help.
Title: Re: Wiring a MOPAR 3 wire alternator?
Post by: sammons on October 22, 2016, 07:53:25 PM
Ghost beat me to it. Late 60's up till ?
Title: Re: Wiring a MOPAR 3 wire alternator?
Post by: EDNY on October 22, 2016, 08:12:16 PM
Thanks guys...looking at the diagrams this alternator doesn't have an internal regulator because it has (2) field terminals?
Title: Re: Wiring a MOPAR 3 wire alternator?
Post by: sammons on October 22, 2016, 08:45:47 PM
Ed, I just looked up my '98 Dodge p.u. and it said the regulator is external, located in the PCM. I don't know any thing about these newer ones.
Title: Re: Wiring a MOPAR 3 wire alternator?
Post by: EDNY on October 22, 2016, 08:52:44 PM
Ed, I just looked up my '98 Dodge p.u. and it said the regulator is external, located in the PCM. I don't know any thing about these newer ones.

I think you are right and my buddy needs an external regulator...found this article about converting the (2) field wire unit into a (1)  field wire car.

https://www.hemmings.com/magazine/hmn/2008/12/Chrysler-Alternators/1735462.html
Title: Re: Wiring a MOPAR 3 wire alternator?
Post by: sammons on October 22, 2016, 08:55:19 PM
There was something on there about a stand alone quick set up for a Jeep (same) using an old 2plug regulator.
Title: Re: Wiring a MOPAR 3 wire alternator?
Post by: EDNY on October 22, 2016, 09:08:50 PM
Found an old post on the HAMB where a guy was trying to wire up a MOPAR alternator, gave up and installed a GM one wire  ;D
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